INDEX 257 



Tracks, of Mylodon, 46 



of worms, 3, 33 

 Triceratops, brain, 94 



broken horn, 102 



description, 100, 101 



restoration, 126* 



skeleton, 103* 

 Tufa, 14 

 Tukeman, killing of the Mammoth, 177, 193 



Variation in animals, 228 

 Vertebrates, oldest, 22 

 Vestigial structures, 201, 202 

 Volcanic outbursts, 231, 232 



Webster, F. S., on destruction of gar pikes, 26 

 AVhite, C. A,, on the nature and uses of fossils, 17 

 White Shark, 65 

 Wings, 71, 72,* 73 



of embryonic birds, 73 

 Wood, fossil, 9, 10 

 Worm trails, 3, 33 



Yucca, fertilization, 235 



Zeuglodon, abundance of remams, 60 

 same as Basilosaurus 

 description, 58, 63 

 habits, 59 



